Finding the Fourth Proportional to 73,593.20, 110,356.58 and 20,990.18
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Solution
The fourth proportional to 73,593.20, 110,356.58 and 20,990.18 is: 31,475.80
Step by Step Solution
- Step 1: Write the proportion equation
73,593.20 : 110,356.58 = 20,990.18 : x - Step 2: Convert to fraction form
73,593.20/110,356.58 = 20,990.18/x - Step 3: Cross multiply
73,593.20x = 110,356.58 × 20,990.18 - Step 4: Simplify right side
73,593.20x = 2,316,404,478.38 - Step 5: Solve for x
x = 2,316,404,478.38/73,593.20 - Step 6: Final answer
x = 31,475.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.